Home / 142,802.46-197,156.95-91,903.57

Finding the Fourth Proportional to 142,802.46, 197,156.95 and 91,903.57

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Solution

The fourth proportional to 142,802.46, 197,156.95 and 91,903.57 is: 126,884.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,802.46 : 197,156.95 = 91,903.57 : x
  2. Step 2: Convert to fraction form
    142,802.46/197,156.95 = 91,903.57/x
  3. Step 3: Cross multiply
    142,802.46x = 197,156.95 × 91,903.57
  4. Step 4: Simplify right side
    142,802.46x = 18,119,426,832.66
  5. Step 5: Solve for x
    x = 18,119,426,832.66/142,802.46
  6. Step 6: Final answer
    x = 126,884.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.